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GeneBe

4-125446297-A-G

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PVS1_ModeratePM2PP3_Strong

The ENST00000335110.5(FAT4):​c.2094-2A>G variant causes a splice acceptor change. The variant allele was found at a frequency of 0.000013 in 1,612,180 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

FAT4
ENST00000335110.5 splice_acceptor

Scores

3
1
3
Splicing: ADA: 0.9997
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.65
Variant links:
Genes affected
FAT4 (HGNC:23109): (FAT atypical cadherin 4) The protein encoded by this gene is a member of the protocadherin family. This gene may play a role in regulating planar cell polarity (PCP). Studies in mice suggest that loss of PCP signaling may cause cystic kidney disease, and mutations in this gene have been associated with Van Maldergem Syndrome 2. Alternatively spliced transcript variants have been noted for this gene. [provided by RefSeq, Mar 2014]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PVS1
Splicing variant, NOT destroyed by nmd, known LOF gene, truncates exone, which is 0.025235288 fraction of the gene. Cryptic splice site detected, with MaxEntScore 9, offset of -6, new splice context is: atttctgctttctgctttAGtta. Cryptic site results in inframe change. If cryptic site found is not functional and variant results in exon loss, it results in frameshift change.
PM2
Very rare variant in population databases, with high coverage;
PP3
BayesDel_addAF computational evidence supports a deleterious effect, 0.487

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FAT4NM_001291303.3 linkuse as main transcriptc.7204A>G p.Arg2402Gly missense_variant 9/18 ENST00000394329.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FAT4ENST00000335110.5 linkuse as main transcriptc.2094-2A>G splice_acceptor_variant 1 Q6V0I7-2
FAT4ENST00000394329.9 linkuse as main transcriptc.7204A>G p.Arg2402Gly missense_variant 9/185 NM_001291303.3 P1
FAT4ENST00000674496.2 linkuse as main transcriptc.1975A>G p.Arg659Gly missense_variant 8/17
FAT4ENST00000509444.1 linkuse as main transcriptn.187A>G non_coding_transcript_exon_variant 1/23

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152166
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000400
AC:
10
AN:
250136
Hom.:
0
AF XY:
0.0000444
AC XY:
6
AN XY:
135244
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000886
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000137
AC:
20
AN:
1460014
Hom.:
0
Cov.:
30
AF XY:
0.0000138
AC XY:
10
AN XY:
726236
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000171
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152166
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74348
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000941
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.0000741
AC:
9

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.49
D
BayesDel_noAF
Benign
-0.13
CADD
Uncertain
25
DANN
Benign
0.85
Eigen
Pathogenic
0.72
Eigen_PC
Uncertain
0.54
FATHMM_MKL
Pathogenic
0.99
D
MutationTaster
Benign
1.0
D;D
GERP RS
2.8

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
SpliceAI score (max)
0.22
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.22
Position offset: 2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs587777726; hg19: chr4-126367452; API